US7850061B2ExpiredUtilityA1

Method for making a component including fluid flow channels

73
Assignee: COMMISSARIAT ENERGIE ATOMIQUEPriority: Dec 21, 2004Filed: Dec 16, 2005Granted: Dec 14, 2010
Est. expiryDec 21, 2024(expired)· nominal 20-yr term from priority
Inventors:Emmanuel RigalGuillaume De DinechinPhilippe BucciPhilippe Aubert
Y10T29/4935F28F 2275/067F28F 2220/00B23K 20/021F28D 9/0062F28F 3/12F28F 3/048
73
PatentIndex Score
10
Cited by
8
References
37
Claims

Abstract

A method for making a component including fluid flow channels formed by making a plurality of grooves ( 12 ), in at least one face ( 21 ) of a base plate ( 10 ); having opposite ends so that the grooves have open top sides; scalably blocking the open top side of each groove and diffusion-welding a lid by hot isostatic compression onto the face ( 21 ) of the base plate ( 10 ) to cover each of the strips leaving open the fluid flow channels at one or both opposite ends of the base plate for allowing pressurized gas to penetrate into the flow channels.

Claims

exact text as granted — not AI-modified
1. A method for making a component including fluid flow channels ( 18 ) formed by making a plurality of hollow grooves ( 12 ) in at least one face ( 21 ) of a base plate ( 10 ) so that the grooves have open top sides and with the base plate having opposite ends wherein the method is characterized by:
 sealably blocking the open top side of each of the grooves ( 12 ) by welding a plurality of strips ( 16 ) corresponding in number to the number of grooves, for forming said fluid flow channels ( 18 ) with open ends at least at one of the opposite ends of the base plate; 
 placing a lid ( 22 ) onto the face ( 21 ) of the base plate ( 10 ) such that the lid ( 22 ) covers each and every strip ( 16 ); and 
 diffusion welding said lid ( 22 ) onto the face ( 21 ) of the base plate ( 10 ) using hot isostatic compression so that a pressurized gas can flow from said open ends at least at one of the opposite ends of the base plate through said fluid flow channels ( 18 ). 
 
     
     
       2. The method according to  claim 1 , wherein the strips ( 16 ) have opposite edges and that each opposite edge of each strip is welded to the top of a corresponding groove to sealably block the groove. 
     
     
       3. The method according to  claim 2 , wherein the strips ( 16 ) are welded to the one face ( 21 ) of the base plate ( 10 ) by laser welding. 
     
     
       4. The method according to  claim 1 , wherein fittings ( 14 ) are made in the grooves ( 12 ) before their blocking by means of the strips ( 16 ). 
     
     
       5. The method according to  claim 4 , characterized in that the span of the fittings ( 14 ) is between 0.1 mm and 0.6 mm. 
     
     
       6. The method according to  claim 4 , wherein the depth of the fittings ( 14 ) is between 0.5 mm and 1 mm. 
     
     
       7. The method according to  claim 3 , wherein the play between the fitting ( 14 ) and the strip ( 16 ) inserted into this fitting ( 14 ) is less than 0.1 mm. 
     
     
       8. The method according to  claim 1 , characterized in that, after the step for diffusion-welding the lid ( 22 ) with hot isostatic compression, the base plate ( 10 ) and/or the lid ( 22 ) are machined in order to reduce the thickness of the component. 
     
     
       9. The method according to  claim 1 , characterized in that grooves ( 12 ) are made in each of two faces of a base plate ( 72 ). 
     
     
       10. The method according to  claim 1 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate. 
     
     
       11. The method according to  claim 2 , wherein fittings ( 14 ) are made in the grooves ( 12 ) before their blocking by means of the strips ( 16 ). 
     
     
       12. The method according to  claim 3 , wherein fittings ( 14 ) are made in the grooves ( 12 ) before their blocking by means of the strips ( 16 ). 
     
     
       13. The method according to  claim 5 , wherein the depth of the fittings ( 14 ) is between 0.5 mm and 1 mm. 
     
     
       14. The method according to  claim 4 , wherein the play between the fitting ( 14 ) and the strip ( 16 ) inserted into this fitting ( 14 ) is less than 0.1 mm. 
     
     
       15. The method according to  claim 5 , wherein the play between the fitting ( 14 ) and the strip ( 16 ) inserted into this fitting ( 14 ) is less than 0.1 mm. 
     
     
       16. The method according to  claim 6 , wherein the play between the fitting ( 14 ) and the strip ( 16 ) inserted into this fitting ( 14 ) is less than 0.1 mm. 
     
     
       17. The method according to  claim 2 , characterized in that, after the step for diffusion-welding the lid ( 22 ) with hot isostatic compression, the base plate ( 10 ) and/or the lid ( 22 ) are machined in order to reduce the thickness of the component. 
     
     
       18. The method according to  claim 3 , characterized in that, after the step for diffusion-welding the lid ( 22 ) with hot isostatic compression, the base plate ( 10 ) and/or the lid ( 22 ) are machined in order to reduce the thickness of the component. 
     
     
       19. The method according to  claim 4 , characterized in that, after the step for diffusion-welding the lid ( 22 ) with hot isostatic compression, the base plate ( 10 ) and/or the lid ( 22 ) are machined in order to reduce the thickness of the component. 
     
     
       20. The method according to  claim 5 , characterized in that, after the step for diffusion-welding the lid ( 22 ) with hot isostatic compression, the base plate ( 10 ) and/or the lid ( 22 ) are machined in order to reduce the thickness of the component. 
     
     
       21. The method according to  claim 6 , characterized in that, after the step for diffusion-welding the lid ( 22 ) with hot isostatic compression, the base plate ( 10 ) and/or the lid ( 22 ) are machined in order to reduce the thickness of the component. 
     
     
       22. The method according to  claim 7 , characterized in that, after the step for diffusion-welding the lid ( 22 ) with hot isostatic compression, the base plate ( 10 ) and/or the lid ( 22 ) are machined in order to reduce the thickness of the component. 
     
     
       23. The method according to  claim 2 , characterized in that grooves ( 12 ) are made in each of the two faces of a base plate ( 72 ). 
     
     
       24. The method according to  claim 3 , characterized in that grooves ( 12 ) are made in each of the two faces of a base plate ( 72 ). 
     
     
       25. The method according to  claim 4 , characterized in that grooves ( 12 ) are made in each of the two faces of a base plate ( 72 ). 
     
     
       26. The method according to  claim 5 , characterized in that grooves ( 12 ) are made in each of the two faces of a base plate ( 72 ). 
     
     
       27. The method according to  claim 6 , characterized in that grooves ( 12 ) are made in each of the two faces of a base plate ( 72 ). 
     
     
       28. The method according to  claim 7 , characterized in that grooves ( 12 ) are made in each of the two faces of a base plate ( 72 ). 
     
     
       29. The method according to  claim 8 , characterized in that grooves ( 12 ) are made in each of the two faces of a base plate ( 72 ). 
     
     
       30. The method according to  claim 2 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate. 
     
     
       31. The method according to  claim 3 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate. 
     
     
       32. The method according to  claim 4 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate. 
     
     
       33. The method according to  claim 5 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate. 
     
     
       34. The method according to  claim 6 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate. 
     
     
       35. The method according to  claim 7 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate. 
     
     
       36. The method according to  claim 8 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate. 
     
     
       37. The method according to  claim 9 , characterized in that grooves ( 16 ) are made in the lid ( 82 ) so that it itself forms a base plate.

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